package com.zto.sch.base.normal;

/**
 * @program: sch-diy-parent
 * @description:
 * @author: sch
 * @create: 2020-12-13 23:59
 **/
public class StringAdd {
    public static void main(String[] args) {
        String gradeId = "V0";
        String substring = gradeId.substring(1);
        Integer aa = Integer.valueOf(substring) + 1;
        System.out.println("V" + aa);
    }
}
